| Nr. | Date | Event & Result | Mvs |
|---|---|---|---|
| 1 | 1973-00-00 | 21st Nihon Ki-in Championship, Preliminary (?, +) | ? |
| 2 | 1973-06-28 | Oteai (B, W+R) | 210 |
| 3 | 1984-05-31 | 32nd Oza, Round 2 (W, W+4.5) | 255 |
| 4 | 1990-06-23 | 3rd IBM Hayago Open, Round 1 (W, W+R) | 174 |
| 1999 | 2000 | 2001 |
| 2002 | 2003 | 2004 |
| 2005 | 2006 | 2007 |
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